Best Security Guards Companies in Brentwood, California

For reliable home security system installers, look no further than DPS. We are the top ADT-authorized dealers in California Brentwood

Looking for a reliable security guard company in Bay Area? Contact FR1 Security at 415-755-5138 to hire our 24/7 professional security guard services.

From retail and hospitality to corporate and government sectors, we provide security strategies that fit your business, ensuring you get the right level of

Strategic Threat Management provides operational security across corporate, educational, event, and high‑risk sectors. Services include private and corporate protection, construction‑site oversight, mobile vehicle patrols, event crowd management, and worship‑site safety. The firm stresses disciplined standards, real‑world experience, and accountability, supported by long‑term partner relationships and client testimonials for customers today.

Trusted Bay Area security guards for HOAs, construction sites & businesses. Licensed, insured & responsive service tailored to your needs.

Premier Nationwide Security provides professional armed and unarmed security guard services, mobile patrol, and fire watch coverage across Los Angeles County. Licensed, insured, and available 24/7. Call 888-251-6607.

ELITE SECURITY GROUP INC.

Founded in 2019, AMPM Security Specialist provides security in the San Francisco Bay Area. Services include uniformed patrols, loss‑prevention, residential and event protection, and video surveillance. The firm emphasizes vetting, training, $1 million liability coverage, and values of honesty, integrity and trust. Its blog covers risk management, public safety and security trends.

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Guardian Security Agency, a California‑licensed PPO #11106 firm, offers on‑site and patrol security for commercial, residential, construction and specialized sites. Established in 1992, it leverages over 40 years of combined experience, a dedicated training coordinator, low no‑show rates, and detailed incident reporting to ensure reliable protection peace of mind and safety.

20+ Years Experience   |   24/7 Dispatch   |   Supervisor Oversight   |   Technology-Enabled Reporting GSG Protective Services Covers Your Community GSG Protective Services is a full-service provider of premium security services specializing in physical security, protective services, and security technology. GSG understands that safety needs may be unique in each situation and we